hello does this font have these 12 characters? Ĉĉ Ĝĝ Ĥĥ Ĵĵ Ŝŝ Ŭŭ

Sorry, no Esperanto support for this one.

But does it have combining marks like combining circumflex or breve?

Yes, it has combining marks. You may need to do some aligmnent.

...and dotless j is included.

Hello.. can I use this font for a logotype? or just text for a brand name from a logomark? Thank you

It's no problem. There's more info included with the font.

where can i get the other 7 versions of the font?

Hello Ryann, you can get them here: https://typodermicfonts.com/conthrax/

This font says 100% Free but in the readme it seems to state otherwise. ??? I want to use it in an Unreal video game for UI in the menus etc. Possibly commercial tutorials as well. Unreal embeds the font. I assume this mean app embedding but 'video games' are not listed anywhere. This use appears NOT to be covered by 100% free and when trying to figure out the 'app embed' license it take you to several pages with nothing that is CRYSTAL CLEAR what to cost would be if any?